CVE-2026-63771: medium-severity vulnerability in vrana adminer
Adminer < 5.4.3 Cookie Injection via X-Forwarded-Prefix Header
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6epss 0.4%
Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to downgrade SameSite protection and enable cross-origin authenticated requests, bypassing cookie security controls.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
vrana · adminerpublic PoCs found — 1
cve_referencegithub.com/vrana/adminer/issues/1298unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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